import random
from datetime import datetime

from django.shortcuts import render
from django.http import HttpResponse
import time

from myadmin.models import Shop
from django.core.paginator import Paginator
from django.db.models import Q
import hashlib,random

def index(request,pagIndex=1):
    smod = Shop.objects
    slist = smod.filter(status__lt=9)

    mywhere = []

    #获取并判断搜索条件
    kw = request.GET.get('keyword',None)
    if kw:
        slist = slist.filter(name__contains=kw)
        mywhere.append('keyword='+kw)

    #获取判断并封装status的搜索条件
    status = request.GET.get('status','')
    if status != '':
        slist = slist.filter(status=status)
        mywhere.append('status='+status)

    slist =slist.order_by('id')

    #执行分页处理
    pagIndex = int(pagIndex)
    page = Paginator(slist,10)
    maxpages = page.num_pages

    #判断当前分页是否越界
    if pagIndex > maxpages:
        pagIndex = maxpages
    if pagIndex < 1 :
        pagIndex = 1

    list2 = page.page(pagIndex) #获取当前页数据
    plist = page.page_range #读取页码列表信息

    context ={'shoplist':list2,'plist':plist,'pagIndex':pagIndex,'maxpages':maxpages,'mywhere':mywhere}
    return render(request,'myadmin/shop/index.html',context)

def add(request):
    return render(request,'myadmin/shop/add.html')

def insert(request):
    try:
        # 店铺封面图片的上传处理
        myfile = request.FILES.get("cover_pic",None)
        if not myfile:
            return HttpResponse("没有店铺封面上传文件信息")
        cover_pic = str(time.time())+"."+myfile.name.split('.').pop()
        destination = open("./static/uploads/shop/"+cover_pic,"wb+")
        for chunk in myfile.chunks():      # 分块写入文件
            destination.write(chunk)
        destination.close()

        # 店铺logo图片的上传处理
        myfile = request.FILES.get("banner_pic",None)
        if not myfile:
            return HttpResponse("没有店铺logo上传文件信息")
        banner_pic = str(time.time())+"."+myfile.name.split('.').pop()
        destination = open("./static/uploads/shop/"+banner_pic,"wb+")
        for chunk in myfile.chunks():      # 分块写入文件
            destination.write(chunk)
        destination.close()

        ob = Shop()
        ob.name = request.POST['name']
        ob.address = request.POST['address']
        ob.phone = request.POST['phone']
        ob.cover_pic = cover_pic
        ob.banner_pic = banner_pic
        ob.status = 1
        ob.create_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        ob.update_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        ob.save()
        context = {'info':'添加成功！'}

    except Exception as err :
        print(err)
        context = {'info':'添加失败！'}
    return render(request,'myadmin/info.html',context)

def delete(request,sid=0):
    try:
        ob = Shop.objects.get(id=sid)
        ob.status = 9
        ob.update_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        ob.save()
        context = {'info':'删除成功！'}

    except Exception as err :
        print(err)
        context = {'info':'删除失败！'}
    return render(request,'myadmin/info.html',context)


def edit(request,sid=0):

    try:
        ob = Shop.objects.get(id=sid)
        context = {'shop':ob}
        return render(request,'myadmin/shop/edit.html',context)

    except Exception as err :
        print(err)
        context = {'info':'没有找到要修改的信息！'}
        return render(request,'myadmin/info.html',context)

def update(request,sid=0):

    try:
        ob = Shop.objects.get(id=sid)
        ob.name =request.POST['name']
        ob.phone =request.POST['phone']
        ob.address = request.POST['address']
        ob.status = request.POST['status']
        ob.update_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        ob.save()
        context = {'info':'修改成功!'}
    except Exception as err :
        print(err)
        context = {'info':'修改失败！'}
    return render(request,'myadmin/info.html',context)

